which of the following ports?

The deployment of secure NNTP requires the use of which of the following ports?

A.
443

B.
462

C.
465

D.
562

E.
563

Explanation:
SSL application:
SSL – port 443
Secure SMTP – 465 (SMTP uses 25)
Secure NNTP – 563 (NNTP uses 119)